نتایج جستجو برای: bacterial barrier

تعداد نتایج: 291925  

2017
Corinna N. Ross Steven Austad Kathy Brasky Celeste J. Brown Larry J. Forney Jonathan A. Gelfond Robert Lanford Arlan Richardson Suzette D. Tardif

A specific pathogen free (SPF) barrier colony of breeding marmosets (Callithrix jacchus) was established at the Barshop Institute for Longevity and Aging Studies. Rodent and other animal models maintained as SPF barrier colonies have demonstrated improved health and lengthened lifespans enhancing the quality and repeatability of aging research. The marmosets were screened for two viruses and se...

Journal: :Archives of disease in childhood 1980
V M Joglekar

Experiments are described which show that vernix caseosa has a mechanical barrier effect if it is deposited in an unbroken layer. Specific antibacterial properties were not detected in vernix. It is suggested that vernix is best left on a newborn infant because of its mechanical obstruction to bacterial passage.

Journal: :Digestive diseases 2007
Antonio Gasbarrini Ernesto Cristiano Lauritano Maurizio Gabrielli Emidio Scarpellini Andrea Lupascu Veronica Ojetti Giovanni Gasbarrini

Small intestinal bacterial overgrowth (SIBO) is a clinical condition characterized by a malabsorption syndrome due to an increase in microorganisms within the small intestine. The main mechanisms restricting bacterial colonization in the upper gut are the gastric acid barrier, mucosal and systemic immunity and intestinal clearance. When these mechanisms fail, bacterial overgrowth develops. Diar...

Journal: :The Journal of infectious diseases 2000
F Nayeri I Nilsson L Hagberg L Brudin M Roberg C Söderström P Forsberg

The organotrophic functions of the hepatocyte growth factor (HGF) have been the subject of several studies. In the more recent studies, this function has been reported in the brain. In the present study, we have measured the levels of HGF in cerebrospinal fluid (CSF) and sera from 78 patients divided into 6 different groups according to central nervous system (CNS) infection and control. Quanti...

2017
Peter A Bron Michiel Kleerebezem Robert-Jan Brummer Patrice D Cani Annick Mercenier Thomas T MacDonald Clara L Garcia-Ródenas Jerry M Wells

Intestinal barrier integrity is a prerequisite for homeostasis of mucosal function, which is balanced to maximise absorptive capacity, while maintaining efficient defensive reactions against chemical and microbial challenges. Evidence is mounting that disruption of epithelial barrier integrity is one of the major aetiological factors associated with several gastrointestinal diseases, including ...

Journal: :iranian endodontic journal 0
seyed mohsen hasheminia department of endodontics, dental school, isfahan university of medical sciences, isfahan, iran ghader feizi endodontist, torabinejad research centre, dental school, isfahan university of medical sciences, isfahan, iran seyed mohammad razavi department of oral and maxillofacial pathology, dental school, isfahan university of medical sciences, isfahan, iran mahboobe feizianfard department of endodontics, dental school, isfahan university of medical sciences, isfahan, iran

introduction: direct pulp capping (dpc) is coverage of exposed pulp by a biocompatible material after traumatic or carious exposure. the purpose of this procedure is to seal against bacterial leakage, stimulate dentinal barrier formation, and maintain the vitality of pulp. several factors contribute to the consequence of this treatment such as material and the procedural technique. the aim of t...

Journal: :European review for medical and pharmacological sciences 2015
L R Lopetuso F Scaldaferri G Bruno V Petito F Franceschi A Gasbarrini

OBJECTIVE Gut barrier is a functional unit organized as a multi-layer system and its multiple functions are crucial for maintaining gut homeostasis. Numerous scientific evidences showed a significant association between gut barrier leaking and gastro-intestinal/extra-intestinal diseases. MATERIALS AND METHODS In this review we focus on the relationship between gut barrier leaking and human he...

Journal: :علوم 0

in this research work, alpha particle detector is made using semi-insulating gaas. a surface barrier detector with a semi-insulating gaas substrate at room temperature with pressure of 10-4 torr under -particle radiation with 5.48 mev of am241 source, have been under investigation. energy resolution of 2 and 3 mm schottky diameter have been matured and compared with the effect of voltage varia...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2009
Runkuan Yang Keita Miki Niku Oksala Atsunori Nakao Leena Lindgren Meaghan E Killeen Ari Mennander Mitchell P Fink Jyrki Tenhunen

Lipopolysaccharide (LPS) is an important factor in sepsis. LPS given by intraperitoneal injection induces intestinal hyperpermeability and bacterial translocation in animals and stimulates hepatic Kupffer cells to release TNF-alpha into the bile. This study aims to test the hypothesis that in response to LPS stimulation, hepatic Kupffer cells and extrahepatic macrophages release a large amount ...

2013
Jan Šlapeta Marjorie C. Linares

BACKGROUND The coral is predominantly composed of the metabolically dependent coral host and the photosynthetic dinoflagellate Symbiodinium sp. The system as a whole interacts with symbiotic eukaryotes, bacteria and viruses. Gemmocystiscylindrus (cf. "type-N" symbiont) belonging to the obligatory parasitic phylum Apicomplexa (Alveolata) is ubiquitous in the Caribbean coral, but its presence in ...

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